LLM implementation cost depends on usage and which LLM model to choose. Small setup: $5,000 – $20,000 Medium setup: $20,000 – $80,000 Large or enterprise setup: $80,000+ When choosing the best LLM, focus on your real need, not just model size. Bigger models increase cost. For choosing the right LLM, define your task, check usage, and test models. Knowing how to choose the right LLM model helps control cost and improve results. Conclusion: LLM cost varies by use case. Smart planning and choosing the right LLM keeps implementation efficient and affordable.